[PATCH 05/23] drm/amdgpu/gfx8: add support KIQ for FIJI/TONGA chips
Xiangliang Yu
Xiangliang.Yu at amd.com
Sat Dec 17 16:16:27 UTC 2016
FIJI/TONGA chips must enable KIQ feature to support virtualization.
Signed-off-by: Xiangliang Yu <Xiangliang.Yu at amd.com>
Signed-off-by: Monk Liu <Monk.Liu at amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 237 +++++++++++++++++++++++++++++++++-
1 file changed, 236 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index a7c5113..ae20cd9 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -1410,6 +1410,67 @@ static int gfx_v8_0_mec_init(struct amdgpu_device *adev)
return 0;
}
+static void gfx_v8_0_kiq_fini(struct amdgpu_device *adev)
+{
+ int r;
+
+ if (adev->kiq.eop_obj) {
+ r = amdgpu_bo_reserve(adev->kiq.eop_obj, false);
+ if (unlikely(r != 0))
+ dev_warn(adev->dev, "(%d) reserve HPD EOP bo failed\n", r);
+ amdgpu_bo_unpin(adev->kiq.eop_obj);
+ amdgpu_bo_unreserve(adev->kiq.eop_obj);
+ amdgpu_bo_unref(&adev->kiq.eop_obj);
+ adev->kiq.eop_obj = NULL;
+ }
+}
+
+static int gfx_v8_0_kiq_init(struct amdgpu_device *adev)
+{
+ int r;
+ u32 *hpd;
+
+ if (adev->kiq.eop_obj == NULL) {
+ r = amdgpu_bo_create(adev,
+ MEC_HPD_SIZE,
+ PAGE_SIZE, true,
+ AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
+ &adev->kiq.eop_obj);
+ if (r) {
+ dev_warn(adev->dev, "(%d) create HDP EOP bo failed\n", r);
+ return r;
+ }
+ }
+
+ r = amdgpu_bo_reserve(adev->kiq.eop_obj, false);
+ if (unlikely(r != 0)) {
+ gfx_v8_0_kiq_fini(adev);
+ return r;
+ }
+
+ r = amdgpu_bo_pin(adev->kiq.eop_obj, AMDGPU_GEM_DOMAIN_GTT,
+ &adev->kiq.eop_gpu_addr);
+ if (r) {
+ dev_warn(adev->dev, "(%d) pin HDP EOP bo failed\n", r);
+ gfx_v8_0_kiq_fini(adev);
+ return r;
+ }
+
+ r = amdgpu_bo_kmap(adev->kiq.eop_obj, (void **)&hpd);
+ if (r) {
+ dev_warn(adev->dev, "(%d) map HDP EOP bo failed\n", r);
+ gfx_v8_0_kiq_fini(adev);
+ return r;
+ }
+
+ memset(hpd, 0, MEC_HPD_SIZE);
+
+ amdgpu_bo_kunmap(adev->kiq.eop_obj);
+ amdgpu_bo_unreserve(adev->kiq.eop_obj);
+
+ return 0;
+}
+
static const u32 vgpr_init_compute_shader[] =
{
0x7e000209, 0x7e020208,
@@ -1987,6 +2048,11 @@ static int gfx_v8_0_sw_init(void *handle)
struct amdgpu_ring *ring;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ /* KIQ event */
+ r = amdgpu_irq_add_id(adev, 178, &adev->kiq.irq);
+ if (r)
+ return r;
+
/* EOP Event */
r = amdgpu_irq_add_id(adev, 181, &adev->gfx.eop_irq);
if (r)
@@ -2024,6 +2090,16 @@ static int gfx_v8_0_sw_init(void *handle)
return r;
}
+ r = gfx_v8_0_kiq_init(adev);
+ if (r) {
+ DRM_ERROR("Failed to init KIQ BOs!\n");
+ return r;
+ }
+
+ r = amdgpu_kiq_init_ring(adev, &adev->kiq.ring, &adev->kiq.irq);
+ if (r)
+ return r;
+
/* set up the gfx ring */
for (i = 0; i < adev->gfx.num_gfx_rings; i++) {
ring = &adev->gfx.gfx_ring[i];
@@ -2107,7 +2183,9 @@ static int gfx_v8_0_sw_fini(void *handle)
amdgpu_ring_fini(&adev->gfx.gfx_ring[i]);
for (i = 0; i < adev->gfx.num_compute_rings; i++)
amdgpu_ring_fini(&adev->gfx.compute_ring[i]);
+ amdgpu_kiq_free_ring(&adev->kiq.ring, &adev->kiq.irq);
+ gfx_v8_0_kiq_fini(adev);
gfx_v8_0_mec_fini(adev);
gfx_v8_0_rlc_fini(adev);
gfx_v8_0_free_microcode(adev);
@@ -4468,6 +4546,131 @@ static int gfx_v8_0_cp_compute_load_microcode(struct amdgpu_device *adev)
return 0;
}
+static int gfx_v8_0_kiq_init_queue(struct amdgpu_ring *ring,
+ struct vi_mqd *mqd,
+ u64 mqd_gpu_addr)
+{
+ struct amdgpu_device *adev = ring->adev;
+ struct amdgpu_kiq *kiq = &adev->kiq;
+ uint64_t eop_gpu_addr;
+ bool is_kiq = false;
+
+ if (ring->funcs->type == AMDGPU_RING_TYPE_KIQ)
+ is_kiq = true;
+
+ if (is_kiq) {
+ eop_gpu_addr = kiq->eop_gpu_addr;
+ amdgpu_kiq_enable(&kiq->ring);
+ } else
+ eop_gpu_addr = adev->gfx.mec.hpd_eop_gpu_addr + ring->queue * MEC_HPD_SIZE;
+
+ mutex_lock(&adev->srbm_mutex);
+ vi_srbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
+
+ amdgpu_mqd_init(adev, mqd, mqd_gpu_addr, eop_gpu_addr, ring);
+
+ if (is_kiq)
+ amdgpu_kiq_init(adev, mqd, ring);
+
+ vi_srbm_select(adev, 0, 0, 0, 0);
+ mutex_unlock(&adev->srbm_mutex);
+
+ if (is_kiq)
+ amdgpu_kiq_start(ring);
+ else
+ amdgpu_kiq_map_queue(&kiq->ring, ring);
+
+ return 0;
+}
+
+static int gfx_v8_0_kiq_map_queue(struct amdgpu_device *adev,
+ struct amdgpu_ring *ring)
+{
+ struct vi_mqd *mqd;
+ u64 mqd_gpu_addr;
+ u32 *buf;
+ int r = 0;
+
+ r = amdgpu_bo_create(adev, sizeof(struct vi_mqd), PAGE_SIZE, true,
+ AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
+ &ring->mqd_obj);
+ if (r) {
+ dev_warn(adev->dev, "(%d) create MQD bo failed\n", r);
+ return r;
+ }
+ r = amdgpu_bo_reserve(ring->mqd_obj, false);
+ if (unlikely(r != 0)) {
+ amdgpu_bo_unref(&ring->mqd_obj);
+ return r;
+ }
+ r = amdgpu_bo_pin(ring->mqd_obj, AMDGPU_GEM_DOMAIN_GTT,
+ &mqd_gpu_addr);
+ if (r) {
+ dev_warn(adev->dev, "(%d) pin MQD bo failed\n", r);
+ amdgpu_bo_unreserve(ring->mqd_obj);
+ amdgpu_bo_unref(&ring->mqd_obj);
+ return r;
+ }
+ r = amdgpu_bo_kmap(ring->mqd_obj, (void **)&buf);
+ if (r) {
+ dev_warn(adev->dev, "(%d) map MQD bo failed\n", r);
+ amdgpu_bo_unpin(ring->mqd_obj);
+ amdgpu_bo_unreserve(ring->mqd_obj);
+ amdgpu_bo_unref(&ring->mqd_obj);
+ return r;
+ }
+
+ /* init the mqd struct */
+ memset(buf, 0, sizeof(struct vi_mqd));
+ mqd = (struct vi_mqd *)buf;
+
+ r = gfx_v8_0_kiq_init_queue(ring, mqd, mqd_gpu_addr);
+ if (r)
+ return r;
+
+ amdgpu_bo_kunmap(ring->mqd_obj);
+ amdgpu_bo_unreserve(ring->mqd_obj);
+
+ return 0;
+}
+
+static int gfx_v8_0_kiq_resume(struct amdgpu_device *adev)
+{
+ struct amdgpu_ring *ring = NULL;
+ int r, i;
+
+ ring = &adev->kiq.ring;
+ r = gfx_v8_0_kiq_map_queue(adev, ring);
+ if (r)
+ return r;
+
+ for (i = 0; i < adev->gfx.num_compute_rings; i++) {
+ ring = &adev->gfx.compute_ring[i];
+ r = gfx_v8_0_kiq_map_queue(adev, ring);
+ if (r)
+ return r;
+ }
+
+ gfx_v8_0_cp_compute_enable(adev, true);
+
+ for (i = 0; i < adev->gfx.num_compute_rings; i++) {
+ ring = &adev->gfx.compute_ring[i];
+
+ ring->ready = true;
+ r = amdgpu_ring_test_ring(ring);
+ if (r)
+ ring->ready = false;
+ }
+
+ ring = &adev->kiq.ring;
+ ring->ready = true;
+ r = amdgpu_ring_test_ring(ring);
+ if (r)
+ ring->ready = false;
+
+ return 0;
+}
+
static void gfx_v8_0_cp_compute_fini(struct amdgpu_device *adev)
{
int i, r;
@@ -4787,7 +4990,10 @@ static int gfx_v8_0_cp_resume(struct amdgpu_device *adev)
if (r)
return r;
- r = gfx_v8_0_cp_compute_resume(adev);
+ if (amdgpu_sriov_vf(adev))
+ r = gfx_v8_0_kiq_resume(adev);
+ else
+ r = gfx_v8_0_cp_compute_resume(adev);
if (r)
return r;
@@ -6464,10 +6670,37 @@ static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_compute = {
.pad_ib = amdgpu_ring_generic_pad_ib,
};
+static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_kiq = {
+ .type = AMDGPU_RING_TYPE_KIQ,
+ .align_mask = 0xff,
+ .nop = PACKET3(PACKET3_NOP, 0x3FFF),
+ .get_rptr = gfx_v8_0_ring_get_rptr,
+ .get_wptr = gfx_v8_0_ring_get_wptr_compute,
+ .set_wptr = gfx_v8_0_ring_set_wptr_compute,
+ .emit_frame_size =
+ 20 + /* gfx_v8_0_ring_emit_gds_switch */
+ 7 + /* gfx_v8_0_ring_emit_hdp_flush */
+ 5 + /* gfx_v8_0_ring_emit_hdp_invalidate */
+ 7 + /* gfx_v8_0_ring_emit_pipeline_sync */
+ 17 + /* gfx_v8_0_ring_emit_vm_flush */
+ 7 + 7 + 7, /* gfx_v8_0_ring_emit_fence_compute x3 for user fence, vm fence */
+ .emit_ib_size = 4, /* gfx_v8_0_ring_emit_ib_compute */
+ .emit_ib = gfx_v8_0_ring_emit_ib_compute,
+ .emit_fence = amdgpu_kiq_ring_emit_fence,
+ .emit_hdp_flush = gfx_v8_0_ring_emit_hdp_flush,
+ .emit_hdp_invalidate = gfx_v8_0_ring_emit_hdp_invalidate,
+ .test_ring = gfx_v8_0_ring_test_ring,
+ .test_ib = gfx_v8_0_ring_test_ib,
+ .insert_nop = amdgpu_ring_insert_nop,
+ .pad_ib = amdgpu_ring_generic_pad_ib,
+};
+
static void gfx_v8_0_set_ring_funcs(struct amdgpu_device *adev)
{
int i;
+ adev->kiq.ring.funcs = &gfx_v8_0_ring_funcs_kiq;
+
for (i = 0; i < adev->gfx.num_gfx_rings; i++)
adev->gfx.gfx_ring[i].funcs = &gfx_v8_0_ring_funcs_gfx;
@@ -6500,6 +6733,8 @@ static void gfx_v8_0_set_irq_funcs(struct amdgpu_device *adev)
adev->gfx.priv_inst_irq.num_types = 1;
adev->gfx.priv_inst_irq.funcs = &gfx_v8_0_priv_inst_irq_funcs;
+
+ amdgpu_kiq_set_irq_funcs(&adev->kiq.irq);
}
static void gfx_v8_0_set_rlc_funcs(struct amdgpu_device *adev)
--
2.7.4
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